Shut-off for gas-wells



-F. W. HUNTER. SHUT-OFF FOR GAS WELLS. APPLICATION FILED NOV. 8, 1920.

Patented May 10, 1921.

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FRANK W. HUNTER, OF KINZUA, IPENNSYLVANIA. I

SHUT-OFF FOR GAS-WELLS.

Specification of Letters Patent.

Patented May 10, 1921.

Application filed November 8, 1920. SerialNo. 122,584.

To all whom it may concern:

Be it known that I, FRANK W. HUNTER, a citizen of the United States, residing at Kinzua, in the county of Warren, State of Pennsylvania, have invented certain new and useful Improvements in Shut-Offs for Gas-VVells; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to new and useful improvements in devices used in connection with gas wells and particularly to shut-offs therefor.

One object of the invention is to provide a valve by means of which the gas can be shut off from the well, to permit the piping of the well, and then to prevent escape of gas except through the piping.

Other objects and advantages will be apparent from the followingdescription when taken in connection with the accompanying drawing.

In the drawing:

Figure 1 is a side elevation of a gas well valve made in accordance with the invention, the valve being closed to cut off the gas from the well while the pipe is being secured therein. 7

Fig. 2 is a similar view showing the valve when the pipe has been placed and the escape of gas is cut off from the, side of the valve.

Fig. 3 is a vertical longitudinal sectional view through the valve in the position of Fi 1.

Fig. 4 is a horizontal sectional view through the valve in the position of Fig. 2, on the line 4-l of Fig. 2.

Referring particularly to the accompanying drawing 10 represents a portion of the well casing into which is engaged the valve body 11, which latter is the subject-matter of the present invention. The upper portion ofv the valve body 11 is formed with a transverse opening 12 which extends into the upper end.

of the longitudinal bore 13, formed through the body. This opening 12 is preferably angular in outline for the purpose of receiving the correspondingly formed end of the removable valve plug 14. This plug, when thus placed in the opening 12, completely prevents escape of gas from the bore of the valve body. The upper end of the bore 13 is formed to receive'the' end of the gas con-,

veying pipe 15, by means of threads or other suitable gas-tight means. 7

I In the side face of the upper end of the valve body 11, and surrounding the outer end of the opening 12,'is an angular recess 16, the side and bottom walls of which are undercut, as shown at 17 for the reception to be passed into the recess from the upper end of the valve body, as clearly seen in Figs. 2 and 4, of the drawing.

In the operation of the" invention, the'well v having been dug to such a depth that the drill is at or near the gas. sand in the well, the drill is removed and the valve body engaged in the upper end of the well casing or tube 10. The drill is then passed through the valve body and the drilling proceeded with until gas begins to flow. The drill is removed and the plug 141 inserted'to prevent escape of gasthrough the valve body while the pipe 15 is being secured in the upper end of said body. When the pipe has been properly placed the plug 14 is removed and the plug 19 inserted in the recess in theside of the valve body to prevent gas escaping through the opening 12, and to permit the 1 r gas to flow out through the upper end of the body and through the gas pipe 15;

What is claimed is: 1. A gas well valve including a body, a

removable closure for preventing escape of gas while a pipe is being placed, and a removable closure for preventing escape of gas except through the pipe.

2. A gas well valve including a body havmg a longitudinal bore therethrough, said body having an opening in the side thereof communicating with said bore, a removable closure engaged in said opening to close the bore, and a removable closure arranged to close the said opening when the first closure is removed,

3. A gas Well Valve including a body having a longitudinal bore therethrough and an opening in one side thereof communicating With the bore, the side of the body having a recess With undercut side Walls and surrounding said opening, a removable plug for insertion in the said opening'to close the bore, and a removable closure forengagement beneath the undercut Walls of the recess to close the said opening, at times.

In testimony whereof, I aflix my signature, in the presence of two Witnesses.

FRANK W. HUNTER.

"-' Witnesses:

Mrs; JESSE ENGLISH, 'ELLEN MALMBERG. 

